| Date Filed | Type | Description |
| 10/10/2023 |
8-K
| Quarterly results |
| 08/14/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 08/14/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 07/05/2023 |
8-K
| Quarterly results |
| 06/12/2023 |
SC 13G/A
| FMR LLC reports a 2.8% stake in NATURAL GAS SVCS GROUP INC |
| 05/31/2023 |
SD
| Form SD - Specialized disclosure report: |
| 05/17/2023 |
8-K
| Conference call transcript |
| 05/15/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 05/15/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 05/02/2023 |
SC 13D/A
| Mill Road Capital III, L.P. reports a 7.3% stake in Natural Gas Services Group, Inc. |
| 05/01/2023 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 03/31/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 03/31/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 03/10/2023 |
SC 13D/A
| Mill Road Capital III, L.P. reports a 7.3% stake in Natural Gas Services Group, Inc. |
| 03/07/2023 |
8-K/A
| Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Financial ... |
| 03/06/2023 |
8-K
| Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance S... |
| 02/14/2023 |
SC 13G/A
| AWM Investment Company, Inc. reports a 6.2% stake in Natural Gas Services Group, Inc. |
| 02/13/2023 |
8-K
| Quarterly results |
| 02/09/2023 |
SC 13G/A
| FMR LLC reports a 8.6% stake in NATURAL GAS SVCS GROUP INC |
| 01/25/2023 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 01/23/2023 |
8-K
| Credit agreement amendment |
| 01/17/2023 |
8-K
| Quarterly results |
| 01/11/2023 |
SC 13D/A
| Hoak Public Equities, LP reports a 9.3% stake in Natural Gas Services Group, Inc. |
| 12/30/2022 |
SC 13D/A
| Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend] |
| 12/28/2022 |
8-K
| Quarterly results |
| 12/23/2022 |
SC 13D/A
| Mill Road Capital III, L.P. reports a 6.6% stake in Natural Gas Services Group, Inc. |
| 12/15/2022 |
8-K
| Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance S... |
| 12/09/2022 |
SC 13D/A
| Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend] |
| 11/28/2022 |
SC 13D
| Form SC 13D - General statement of acquisition of beneficial ownership: |
| 11/15/2022 |
8-K
| Quarterly results |
| 11/14/2022 |
8-K
| Quarterly results |
| 11/14/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 11/09/2022 |
8-K
| Quarterly results |
| 08/15/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
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